Shelf is an app for MacOS that looks at the current foreground application, and tries to figure out if what you’re looking at corresponds to a person in your Address Book. Then it’ll tell you things about them.
It requires MacOS 10.5 ‘Leopard’ (there are no plans for a 10.4 version, sorry) and is a Universal Binary.
.webp)
.webp){kind=icon}
A free program for Mac, by Pocket Bits LLC.
